[python]代码库
import tkinter as tk
import time
# 创建主窗口
window = tk.Tk()
window.title('进度条')
window.geometry('630x150')
# 设置下载进度条
tk.Label(window, text='下载进度:', ).place(x=50, y=60)
canvas = tk.Canvas(window, width=465, height=22, bg="white")
canvas.place(x=110, y=60)
# 显示下载进度
def progress():
# 填充进度条
fill_line = canvas.create_rectangle(1.5, 1.5, 0, 23, width=0, fill="green")
x = 500 # 未知变量,可更改
n = 465 / x # 465是矩形填充满的次数
for i in range(x):
n = n + 465 / x
canvas.coords(fill_line, (0, 0, n, 60))
window.update()
time.sleep(0.02) # 控制进度条流动的速度
# 清空进度条
fill_line = canvas.create_rectangle(1.5, 1.5, 0, 23, width=0, fill="white")
x = 500 # 未知变量,可更改
n = 465 / x # 465是矩形填充满的次数
for t in range(x):
n = n + 465 / x
# 以矩形的长度作为变量值更新
canvas.coords(fill_line, (0, 0, n, 60))
window.update()
time.sleep(0) # 时间为0,即飞速清空进度条
btn_download = tk.Button(window, text='启动进度条', command=progress)
btn_download.place(x=400, y=105)
window.mainloop()